TECHNICAL FIELD
[0001] The present invention relates to a method for accelerating solidification of oil
and fat and a solidification accelerator used in the method.
BACKGROUND ART
[0002] In food products that contain oil and fat, the solidification behaviors of oil and
fat may greatly affect the product design, production, storage, and the like of the
food products. In particular, oil and fat compositions such as margarine, shortening,
chocolates, and hard butter products used for baking and breadmaking have a high ratio
of oil and fat in the make-up and may depend on the solidification behaviors of the
oil and fat used.
[0003] Patent Literature 1 proposes use of waxes as a means for accelerating solidification
of oil and fat. Patent Literature 2 discloses a technique for accelerating solidification
using a solidification accelerator that contains talc as a main component. Patent
Literature 3 discloses a technique for accelerating solidification using a solidification
accelerator derived from palm fruit. As a method for accelerating solidification of
oil and fat, Patent Literature 4 discloses a crystallization method using a graphite
sheet.
CITATION LIST
PATENT LITERATURE
SUMMARY OF INVENTION
PROBLEMS TO BE SOLVED BY INVENTION
[0005] An object of the present invention is to provide a method capable of simply accelerating
solidification of oil and fat and to provide a solidification accelerator used in
the solidification acceleration method.
SOLUTION TO PROBLEMS
[0006] The present inventor has conducted intensive studies for solving the above-described
problems. It cannot be said that Patent Literature 1 has a clear solidification accelerating
effect only by the change in the solid fat content when wax is added. Patent Literature
2 describes that the type and shape of talc affect the solidification accelerating
effect, which complicates its use. The solidification accelerator derived from palm
fruit of Patent Literature 3 is complicated in the production and has a large environmental
load during production. In the crystallization method using a graphite sheet of Patent
Literature 4, a special crystallizer with a graphite sheet processed is required,
which lacks versatility, and a technique capable of obtaining a stronger solidification
accelerating effect has been required.
[0007] As a result of further studies by the present inventor, it was found that the solidification
of oil and fat to be solidification-accelerated is accelerated only by adding a silicate
having a fatty acid adsorption capability and a free fatty acid to the oil and fat,
and the present invention has been completed.
[0008] That is, the present invention relates to the following:
- (1) A method for accelerating solidification of oil and fat, including allowing (A)
and (B) below to coexist in oil and fat to be solidification-accelerated:
- (A) a silicate having a fatty acid adsorption ratio of 8% or more in an average particle
diameter during use; and
- (B) a free fatty acid in an amount of 0.01% by weight or more and 5.0% by weight or
less in oil and fat.
- (2) The method for accelerating solidification of oil and fat according to (1), in
which the free fatty acid is a saturated fatty acid having 12 to 24 carbon atoms.
- (3) The method for accelerating solidification of oil and fat according to (1), in
which the free fatty acid is an unsaturated fatty acid having 12 to 24 carbon atoms.
- (4) The method for accelerating solidification of oil and fat according to (1), in
which the free fatty acid is a mixture of a saturated fatty acid having 12 to 24 carbon
atoms and an unsaturated fatty acid having 12 to 24 carbon atoms.
- (5) The method for accelerating solidification of oil and fat according to any one
of (1) to (4), in which the silicate is amorphous silica.
- (6) The method for accelerating solidification of oil and fat according to any one
of (1) to (5), in which a coexistence ratio of the free fatty acid and the silicate
(A/B ratio) is 0.001 or more and 50 or less, provided that A indicates the free fatty
acid (% by weight), and B indicates the silicate amount (% by weight).
- (7) The method for accelerating solidification of oil and fat according to any one
of (1) to (6), in which the silicate is added in an amount of 0.05% by weight or more
and 5.0% by weight or less with respect to the oil and fat to be solidification-accelerated.
- (8) A solidification accelerator for oil and fat including the silicate, which is
used in the method for accelerating solidification of oil and fat according to any
one of (1) to (7).
- (9) A method for producing oil and fat, including: a solidification step in a production
step; and performing fractionation after the solidification, in which solidification
is accelerated by using the method for accelerating solidification of oil and fat
according to any one of (1) to (7), and a time until completion of the fractionation
after the solidification is shortened.
[0009] In other words, the present invention relates to the following:
(11) A method for accelerating solidification of oil and fat, including allowing a
silicate having a fatty acid adsorption ratio of 8% or more in an average particle
diameter during use and a free fatty acid in an amount of 0.01% by weight or more
and 5.0% by weight or less to coexist in oil and fat to be solidification-accelerated.
(12) The method for accelerating solidification of oil and fat according to (11),
in which the free fatty acid is a saturated fatty acid having 12 to 24 carbon atoms
or an unsaturated fatty acid having 12 to 24 carbon atoms.
(13) The method for accelerating solidification of oil and fat according to (11) or
(12), in which a coexistence ratio of the free fatty acid and the silicate (A/B ratio)
is 0.001 or more and 50 or less, provided that A indicates the free fatty acid (%
by weight), and B indicates the silicate amount (% by weight).
(14) The method for accelerating solidification of oil and fat according to any one
of (11) to (13), in which the silicate is added in an amount of 0.05% by weight or
more and 5.0% by weight or less with respect to the oil and fat to be solidification-accelerated.
(15) A solidification accelerator for oil and fat including the silicate, which is
used in the method for accelerating solidification of oil and fat according to any
one of (11) to (14).
(16) A method for producing oil and fat, including a solidification step in a production
step, in which the method for accelerating solidification of oil and fat according
to any one of (11) to (14) is used.
EFFECTS OF INVENTION
[0010] According to the present invention, it is possible to simply accelerate solidification
of oil and fat and to obtain a solidification accelerator for oil and fat which can
be simply used.
BEST MODE OF CARRYING OUT INVENTION
[0011] Hereinafter, the present invention will be specifically described.
(Silicate)
[0012] In the present invention, the silicate is a substance that contains silicon and is
a generic term for compounds that contain an anion having a structure in which an
electronegative ligand surrounds a silicon atom with one or several silicon atoms
in the center, such as silicon dioxide. A silicate generally includes crystalline
silica having a periodic regular crystal structure and amorphous silica having no
regularity. Examples of the crystalline silica include talc, kaolin, zeolite, cristobalite,
and synthetic quartz glass, and examples of the amorphous silica include diatomaceous
earth, silicon dioxide, silica gel, magnesium silicate, calcium silicate, and white
clay. Among them, the silicate in the present invention is desirably amorphous silica,
more desirably silicon dioxide, calcium silicate, and magnesium silicate, and further
desirably calcium silicate and magnesium silicate. By using an appropriate silicate,
a preferable solidification accelerating effect of oil and fat can be obtained. In
addition, the silicate is not particularly limited to a natural product or a synthetic
product, as long as it is one of the substances mentioned herein. The silicate of
the present invention is not limited to a food additive.
(Fatty acid adsorption capability)
[0013] In the method for accelerating solidification of oil and fat according to the present
invention, it is necessary to use a silicate having a fatty acid adsorption capability.
The fatty acid adsorption capability as described herein is an index indicating the
binding ability between a silicate in an average particle diameter during use and
a fatty acid and is based on the following calculation. That is, to palm oil formulated
with 1% by weight of a free palmitic acid as a substrate, 1% by weight of a silicate
having an average particle diameter during use as an adsorbent is added. Thereafter,
the mixture is shaken at 150 rpm for 60 minutes under an environment at 60°C. After
shaking, the mixture is filtered under an environment at 60°C, and the acid value
of the filtrate is measured. The reduction rate of the acid value before and after
the reaction is calculated as the fatty acid adsorption ratio per 1 g of the adsorbent.
[0014] Here, the term "during use" refers to the time during which use in the method for
accelerating solidification in the present invention occurs and the time during which
the solidification accelerating effect of the present invention is produced.
[0015] Regarding the fatty acid adsorption capability in the present invention, the fatty
acid adsorption ratio in an average particle diameter during use of the silicate needs
to be 8% or more, more preferably 9% or more, and further preferably 10% or more.
It is considered that when the fatty acid adsorption ratio of the silicate in an average
particle diameter during use is appropriate, the bound silicate and fatty acid are
insolubilized in oil and fat to be solidified and become a crystal nucleus, which
preferably accelerates solidification of the oil and fat. The method for measuring
the acid value is performed in accordance with "Standard Methods for the Analysis
of Fats, Oils and Related Materials" established by Japan Oil Chemists' Society.
[0016] In the solidification accelerator for oil and fat according to the present invention,
the silicate usable in the above-described "method for accelerating solidification
of oil and fat" is used.
[0017] The silicate of the present invention is preferably added in an amount of 0.05% by
weight or more and 5.0% by weight or less with respect to oil and fat to be solidification-accelerated.
This amount is more preferably 0.1% by weight or more and 4.0% by weight or less and
further preferably 0.1% by weight or more and 3.0% by weight or less. When this addition
amount is appropriate, the intended solidification of oil and fat can be preferably
accelerated.
(Fatty acid)
[0018] In the method for accelerating solidification of oil and fat according to the present
invention, a fatty acid needs to coexist. The fatty acid as described herein is not
bound to glycerin but exists in a free state.
[0019] The free fatty acid according to the present invention is preferably in an amount
of 0.01% by weight or more and 5.0% by weight or less with respect to oil and fat
to be solidification-accelerated. This amount is more preferably 0.01% by weight or
more and 4.5% by weight or less and further preferably 0.01% by weight or more and
4.2% by weight or less. When this fatty acid amount is appropriate, the intended solidification
of oil and fat can be preferably accelerated.
[0020] A predetermined amount of the fatty acid may be all added separately to oil and fat
to be solidification-accelerated, or an appropriate amount of fatty acid originally
contained in oil and fat to be solidification-accelerated may be used. Furthermore,
it is also possible to appropriately adjust the amount of fatty acid to be separately
added, depending on the amount of fatty acid originally contained in oil and fat to
be solidification-accelerated. The fatty acid as described in the present invention
is a free fatty acid obtained by the arithmetic equation for a free fatty acid described
in "Acid value" in "Standard Methods for the Analysis of Fats, Oils and Related Materials"
established by Japan Oil Chemists' Society. That is, calculation can be performed
according to "free fatty acid (% by weight) = acid value x f", and the coefficient
of the main constituent fatty acid of each oil and fat is used as coefficient f. The
detection limit of the fatty acid of the present invention is 0.002% by weight.
[0021] In the solidification accelerator for oil and fat according to the present invention,
the fatty acid usable in the above-described "method for accelerating solidification
of oil and fat" is used.
[0022] The free fatty acid according to the present invention may be either a saturated
fatty acid or an unsaturated fatty acid. The fatty acid is preferably a saturated
fatty acid having 12 to 24 carbon atoms and/or an unsaturated fatty acid having 12
to 24 carbon atoms, more preferably a saturated fatty acid having 12 to 24 carbon
atoms, and further preferably a saturated fatty acid having 16 to 24 carbon atoms.
It is preferable that the coexisting fatty acid is within the above-described range
because the adsorptivity with the silicate is high and the intended solidification
of oil and fat suitably tends to be significantly accelerated.
(Coexistence Ratio of Fatty Acid and Silicate)
[0023] In the method for accelerating solidification of oil and fat according to the present
invention, the coexistence ratio of the free fatty acid to the silicate having a fatty
acid adsorption capability (A/B ratio) is a value obtained by dividing the free fatty
acid amount (A (% by weight)) by the silicate amount (B (% by weight)). The A/B ratio
is preferably 0.001 or more and 50 or less, more preferably 0.005 or more and 50 or
less, further preferably 0.01 or more and 48 or less, still more preferably 0.01 or
more and 45 or less, and particularly preferably 0.05 or more and 40 or less. When
the A/B ratio is within the above-described range, the intended solidification of
oil and fat can be more preferably accelerated. The free fatty acid as described herein
also includes the free fatty acid adsorbed to the silicate.
[0024] In the solidification accelerator for oil and fat according to the present invention,
the A/B ratio usable in the above-described "method for accelerating solidification
of oil and fat" is used.
(Miniaturization of Silicate)
[0025] The particle diameter of the silicate according to the present invention needs to
be such a particle diameter that the fatty acid adsorption ratio in an average particle
diameter during use is 8% or more. That is, the particle size is defined by the fatty
acid adsorption capability of each silicate.
[0026] Examples of the miniaturization method for obtaining a predetermined particle size
include dry pulverization and wet pulverization. In general, the average particle
diameter during use of the silicate is preferably 500 µm or less, more preferably
300 µm or less, and further preferably 250 µm or less. The lower limit of the average
particle size is not limited but suitably 0.1 µm or more from the viewpoint of energy
loss when excessively miniaturized. When the average particle diameter during use
is a preferable value, the fatty acid adsorption ratio of the silicate is also an
appropriate value, and the intended solidification of oil and fat can be preferably
accelerated. The average particle diameter as described herein is a median diameter
(D50) obtained by measurement using SALD 2300 (manufactured by SHIMADZU).
(Types of Oil and Fat as well as Object That Can be Solidification-Accelerated)
[0027] The oil and fat to which the method for accelerating solidification of oil and fat
according to the present invention is applicable is not particularly limited but preferably
an oil and fat having a melting point of 10°C or higher. Examples thereof include
natural solid fats such as palm oil, coconut oil, palm kernel oil, beef tallow, lard,
milk fat, sal fat, shea fat, mango fat, kokum fat, illipe fat, and cacao fat, and
those obtained by performing processing such as fractionation, curing, and transesterification
using these fats as raw materials. In addition, hardened oil, fully hydrogenated oil,
transesterification reaction oil, and the like can be used. Further, there can be
used hardened oil or transesterification reaction oil in which the raw material is
liquid oil such as soybean oil, rapeseed oil, sunflower oil, cottonseed oil, rice
oil, rice bran oil, peanut oil, corn oil, safflower oil, olive oil, kapok oil, sesame
oil, evening primrose oil, fish oil, and whale oil. Also, the oil and fat before purification
can be used. In the present invention, one or two or more of these types of oil and
fat can be used. The melting point as described in the present invention is the slipping
point in "Standard Methods for the Analysis of Fats, Oils and Related Materials (I)"
established by Japan Oil Chemists' Society.
(Solidification Accelerator for Oil and Fat)
[0028] In the present invention, an agent that contains a silicate having a fatty acid adsorption
ratio of 8% or more in an average particle diameter during use can also be used as
a "solidification accelerator for oil and fat". When a predetermined amount of fatty
acid is not contained in oil and fat to be solidification-accelerated, an agent that
contains a predetermined amount of fatty acid can also be used. The fatty acid in
this case is preferably 1% by weight or more and 99% by weight or less, more preferably
1% by weight or more and 95% by weight or less, further preferably 1% by weight or
more and 90% by weight or less, and still more preferably 3% by weight or more and
90% by weight or less. When this range is appropriate, the solidification of oil and
fat can be preferably accelerated when the agent is added to oil and fat to be solidification-accelerated.
[0029] When the solidification accelerator for oil and fat according to the present invention
contains a fatty acid, the A/B ratio is preferably 0.001 or more and 15 or less. This
range is more preferably 0.001 or more and 13 or less and further preferably 0.005
or more and 10 or less. When this range is appropriate, the solidification of oil
and fat can be preferably accelerated when the agent is added to oil and fat to be
solidification-accelerated. When the solidification accelerator for oil and fat according
to the present invention does not contain a fatty acid, the A/B ratio is, needless
to say, 0.
[0030] The silicate contained in the solidification accelerator for oil and fat is preferably
1% by weight or more and 25% by weight or less, more preferably 5% by weight or more
and 20% by weight or less, and further preferably 8% by weight or more and 20% by
weight or less. When this range is appropriate, the solidification of oil and fat
can be preferably accelerated when the agent is added to oil and fat to be solidification-accelerated.
(Utilization Method)
[0031] The method for accelerating solidification of oil and fat according to the present
invention will be described. In the method for producing oil and fat which includes
a solidification step in the production step and a fractionation step after the solidification
step, the solidification of oil and fat to be solidification-accelerated is accelerated
by using the method for accelerating solidification of oil and fat according to the
present invention during the solidification step. This can shorten the time of the
production step taken from the solidification step to the fractionation step. Specifically,
the silicate having a fatty acid adsorption ratio of 8% or more in an average particle
size during use and a free fatty acid are allowed to coexist in oil and fat to be
solidification-accelerated in a molten state. The product is subsequently subjected
to general solidification conditions such as cooling. Thereafter, the solid obtained
in the solidification step is fractionated in the fractionation step to obtain an
intended oil and fat product. The method of the fractionation step as described herein
is not particularly limited. Examples thereof include solvent fractionation and dry
fractionation without using a solvent.
[0032] In the method for accelerating solidification of oil and fat according to the present
invention, the A/B ratio is preferably 0.001 or more and 50 or less with respect to
oil and fat to be solidification-accelerated. Details of this ratio are as described
above.
[0033] In the method for accelerating solidification of oil and fat according to the present
invention, it is preferable that the silicate having a fatty acid adsorption ratio
of 8% or more in an average particle diameter during use is added in an amount of
0.05% by weight or more and 5.0% by weight or less with respect to oil and fat to
be solidification-accelerated. Details of this amount are as described above.
[0034] In the method for accelerating solidification of oil and fat according to the present
invention, it is desirable that the amount of free fatty acid in oil and fat to be
solidification-accelerated is 0.01% by weight or more and 5.0% by weight or less.
Details of this amount are as described above.
[0035] When a predetermined amount of a free fatty acid is contained in oil and fat to be
solidification-accelerated, the fatty acid amount to be separately added can be appropriately
adjusted depending on the content of the free fatty acid.
(Use of Solidification Accelerator for Oil and Fat)
[0036] It is also possible to prepare an agent that contains the silicate according to the
present invention and to use the agent as a "solidification accelerator for oil and
fat". The use aspect of such an agent is also in accordance with the method for accelerating
solidification of oil and fat according to the present invention.
(Evaluation of Solidification Accelerating Effect)
[0037] The solidification accelerating effect of oil and fat according to the present invention
can be evaluated based on the solidification rate of oil and fat and the result of
DSC measurement. More desirably, the effect can be evaluated based on the result of
DSC measurement.
[0038] The solidification rate of oil and fat is calculated from a change in a solid fat
content measured by SFC after melted oil and fat is solidified under certain temperature
conditions. A higher solid fat content at a certain time point indicates a faster
solidification rate of oil and fat. In the evaluation of the solidification rate in
the present invention, the presence or absence of the solidification accelerating
effect is determined from the speed of time until the solid fat content becomes half
the end point. The SFC is the abbreviation for solid fat content, and the content
of solid fat present in oil and fat at a constant temperature is measured with a nuclear
magnetic resonance (NMR) apparatus.
[0039] The DSC measurement is the abbreviation for differential scanning calorimetry and
is a thermal analysis method of measuring a difference in the amount of heat between
a measurement sample and a reference substance to measure a solidification temperature,
a melting point, a glass transition point, and the like. In the evaluation of DSC
measurement in the present invention, the presence or absence of the solidification
accelerating effect is determined from the rising temperature (solidification starting
temperature) and the exothermic peak temperature of the exothermic peak when the sample
is cooled at a constant rate or at a constant temperature.
(Examples)
[0040] Hereinafter, the present invention will be described in more detail. It is noted
that the terms "part" and "%" in the text are on a weight basis unless otherwise stated.
<Examination 1>
(Solidification Method)
[0041] According to the formulation in Table 1, only a palmitic acid, a silicate and a palmitic
acid, or only a silicate was allowed to coexist in purified palm oil completely melted
at 60°C or higher. The oil and fat was completely melted at 60°C or higher again and
then sufficiently mixed by a vortex mixer until the aggregate could not be visually
confirmed. The obtained mixed liquid was immediately subjected to measurement of a
solidification rate (SFC) and DSC measurement.
[0042] In the case of using a pulverized silicate, one pulverized according to "- Wet pulverization
method for silicate" was used. Here, as an auxiliary agent used for pulverization,
the same oil and fat as that used in the subsequent solidification test (for example,
"purified palm oil") was used to adjust the amount of the silicate in oil and fat
to be solidification-accelerated.
[0043] The free fatty acid amount in purified palm oil was calculated as a palmitic acid
in accordance with the method described in "Acid Value" in "Standard Methods for the
Analysis of Fats, Oils and Related Materials" established by Japan Oil Chemists' Society.
- Wet pulverization method of silicate
[0044]
- 1. To oil and fat to be solidification-accelerated which was warmed to 80°C and completely
melted, a silicate to be pulverized and zirconia balls (ϕ 3 mm) were added.
- 2. Pulverization was performed at 1000 rpm for 60 minutes using a three-dimensional
bead impact homogenizer (ShakeMaster AUTO (manufactured by Biomedical Science Inc.)).
- 3. In a state of being completely melted at 80°C or higher, the supernatant was fractionated
with a dropper and subjected to a test. The zirconia balls precipitated immediately
after pulverization and came to be removed because the particle size was larger than
the caliber of the pipette.
(Calculation Method of Fatty Acid Adsorption Ratio)
[0045] The fatty acid adsorption ratio was calculated by the following method. To purified
palm oil formulated with 1% by weight of a palmitic acid as a substrate, 1% by weight
of a silicate as an adsorbent was added. The mixture was shaken at 60°C for 60 minutes
at 150 rpm. Thereafter, the mixture was filtered under an environment at 60°C, and
the acid value of the filtrate was measured. The decrease amount of the acid value
before and after the reaction was calculated as the fatty acid adsorption ratio per
1 g of the adsorbent.
[0046] For the silicate pulverized by the "- Wet pulverization method for silicate", adjustment
was performed to have the formulation ratio required in the "Method for calculating
fatty acid adsorption ratio" based on the addition amount at the time of the pulverization
treatment, and then the fatty acid adsorption ratio was calculated.
(Measurement of Solidification Rate)
[0047] The mixed solution was melted under an environment at 85°C for 15 minutes and allowed
to stand (stabilized) under an environment at 60°C for 30 minutes. The SFC was measured
by NMR (minispec mq20 (manufactured by Bruker Japan K.K.)) every 4 minutes at a constant
temperature of 25°C. Measurement was performed until the SFC change amount reached
less than ±0.5% from 90 minutes to 120 minutes (maximum: 120 minutes). A point where
the change amount in SFC after every 4 minutes was 0 was regarded as an end point,
and an SFC value at the point was obtained. From the SFC curve, the time (hereinafter,
referred to as crystallization half time) T(1/2) min until the SFC becomes half the
end point was calculated. Then, the solidification rate ratio was calculated based
on the crystallization half time, and the solidification accelerating effect was evaluated.
The solidification rate ratio (relative value to unadded value) was calculated from
the following equation.

[0048] Test T(1/2) was defined as the crystallization half time of a mixed solution in which
additives described in Examples or Comparative Examples were formulated.
[0049] Unadded Cont T(1/2) was defined as the crystallization half time of oil and fat in
which additives and a fatty acid were not formulated.
[0050] The presence or absence of the solidification accelerating effect in SFC was evaluated
based on the solidification rate ratio according to the following evaluation points.
0 point: Solidification rate ratio is less than 1.5 times (little influence on solidification)
1 point: Solidification rate ratio is 1.5 times or more (solidification acceleration)
2 points: Solidification rate ratio is 3 times or more (significant solidification
acceleration)
3 points: Solidification rate ratio is 4 times or more (fairly significant solidification
acceleration)
4 points: Solidification rate ratio is 5 times or more (very significant solidification
acceleration)
(Measurement of DSC)
[0051] The change in the endothermic reaction of the mixed liquid was measured with 20 mg
of a sample by DSC (DSC3+ (manufactured by Mettler Toledo Co.)) under a nitrogen atmosphere.
An onset temperature (solidification starting temperature) and a peak temperature
(exothermic peak temperature) during cooling were evaluated. The measurement temperature
conditions were an initial temperature of 85°C (10 minutes), a cooling rate of 1°C/min,
a minimum temperature of 0°C (10 minutes), a heating rate of 5°C/min, and a final
temperature of 85°C.
[0052] The presence or absence of the solidification accelerating effect in DSC was evaluated
based on the rising temperature according to the following evaluation points.
0 point: Change in solidification starting temperature or change in high-temperature
side exothermic peak temperature is lower than 1°C (little influence on solidification)
1 point: Solidification starting temperature and high-temperature side exothermic
peak temperature both increase by 1°C or higher (solidification acceleration)
2 points: Solidification starting temperature and high-temperature side exothermic
peak temperature both increase by 3°C or higher (significant solidification acceleration)
3 points: Solidification starting temperature and high-temperature side exothermic
peak temperature both increase by 5°C or higher (fairly significant solidification
acceleration)
4 points: Solidification starting temperature and high-temperature side exothermic
peak temperature both increase by 7°C or higher (very significant solidification acceleration)
(Evaluation Method)
[0053] A study sample having an evaluation of 2 points or more in the evaluation of either
the solidification rate ratio or DSC was regarded as having the solidification accelerating
effect and designated as acceptable.
|
Comparative Example 1-1 |
Comparative Example 1-2 |
Comparative Example 1-3 |
Example 1-1 |
Example 1-2 |
Example 1-3 |
Example 1-4 |
Formulation [% by weight] |
Purified palm oil |
100 |
99 |
98 |
98 |
98 |
98 |
98 |
Silicate |
Silicate A |
- |
- |
1 |
- |
- |
- |
- |
Silicate B |
- |
- |
- |
1 |
- |
- |
- |
Silicate C |
- |
- |
- |
- |
1 |
- |
- |
Silicate D |
- |
- |
- |
- |
- |
1 |
- |
Silicate E |
- |
- |
- |
- |
- |
- |
1 |
Palmitic acid |
- |
1 |
1 |
1 |
1 |
1 |
1 |
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
Added |
0.000 |
1.000 |
1.000 |
1.000 |
1.000 |
1.000 |
1.000 |
Total |
0.019 |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
A/B ratio in oil and fat |
0.000 |
0.000 |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
Solidification rate |
Solidification rate ratio |
1.0 |
0.8 |
1.3 |
2.7 |
2.5 |
2.4 |
2.5 |
Evaluation |
0 |
0 |
0 |
1 |
1 |
1 |
1 |
DSC |
Change in solidification point starting temperature [°C] |
0.0 |
0.3 |
1.6 |
3.0 |
3.9 |
3.0 |
3.3 |
Change in exothermic peak [°C] |
0.0 |
0.5 |
1.2 |
3.2 |
3.3 |
3.5 |
3.6 |
Evaluation |
0 |
0 |
1 |
2 |
2 |
2 |
2 |
|
Example 1-5 |
Example 1-6 |
Comparative Example 1-4 |
Comparative Example 1-5 |
Comparative Example 1-6 |
Example 1-7 |
Example 1-8 |
Formulation [% by weight] |
Purified palm oil |
98 |
98 |
98 |
98 |
98 |
99 |
98 |
Silicate |
Silicate F |
- |
- |
- |
- |
- |
- |
- |
Silicate G |
- |
- |
- |
- |
- |
- |
- |
Silicate H |
- |
- |
1 |
- |
- |
- |
- |
Silicate I |
- |
- |
|
1 |
- |
- |
- |
Silicate J |
- |
- |
- |
- |
1 |
- |
- |
Silicate K |
- |
- |
- |
- |
- |
1 |
1 |
Palmitic acid |
1 |
1 |
1 |
1 |
1 |
- |
1 |
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
Added |
1.000 |
1.000 |
1.000 |
1.000 |
1.000 |
0.000 |
1.000 |
Total |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
0.019 |
1.019 |
A/B ratio in oil and fat |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
0.019 |
1.019 |
Solidification rate |
Solidification rate ratio |
2.2 |
2.7 |
0.9 |
0.9 |
2.3 |
3.0 |
5.4 |
Evaluation |
1 |
1 |
0 |
0 |
1 |
2 |
4 |
DSC |
Change in solidification point starting temperature [°C] |
3.0 |
3.0 |
0.1 |
0.7 |
2.9 |
2.3 |
7.1 |
Change in exothermic peak [°C] |
3.3 |
3.8 |
0.2 |
0.6 |
3.4 |
3.1 |
7.0 |
Evaluation |
2 |
2 |
0 |
0 |
1 |
1 |
4 |
|
Example 1-9 |
Example 1-10 |
Example 1-11 |
Example 1-12 |
Formulation [% by weight] |
Purified palm oil |
98 |
99 |
98 |
98 |
Silicate |
Silicate L |
1 |
- |
- |
- |
Silicate M |
- |
1 |
1 |
- |
Silicate N |
- |
- |
- |
1 |
Palmitic acid |
1 |
- |
1 |
1 |
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.019 |
0.019 |
0.019 |
Added |
1.000 |
0.000 |
1.000 |
1.000 |
Total |
1.019 |
0.019 |
1.019 |
1.019 |
A/B ratio in oil and fat |
1.019 |
0.019 |
1.019 |
1.019 |
Solidification rate |
Solidification rate ratio |
4.7 |
3.0 |
4.4 |
3.3 |
Evaluation |
3 |
2 |
3 |
2 |
DSC+B2:K53 |
Change in solidification point starting temperature [°C] |
6.2 |
2.6 |
3.1 |
1.4 |
Change in exothermic peak [°C] |
5.8 |
3.5 |
3.8 |
1.2 |
Evaluation |
3 |
1 |
2 |
1 |
[0054] As silicate A, one obtained by wet-pulverizing "Silica Gel" manufactured by FUJIFILM
Wako Pure Chemical Corporation was used (the average particle diameter after pulverization
was 3 mm).
[0055] As silicate B, "Briskoil CAS-30S" which is calcium silicate manufactured by Tomita
Pharmaceutical Co., Ltd. was used (average particle diameter: 120 µm).
[0056] As silicate C, "Florite R" which is calcium silicate manufactured by Tomita Pharmaceutical
Co., Ltd. was used (average particle diameter: 20 µm).
[0057] As silicate D, "Briskoil MT" which is magnesium silicate manufactured by Tomita Pharmaceutical
Co., Ltd. was used (average particle diameter: 150 µm).
[0058] As silicate E, "Briskoil SMD" which is magnesium silicate manufactured by Tomita
Pharmaceutical Co., Ltd. was used (average particle diameter: 100 µm).
[0059] As silicate F, "Mizukalife F-2G" which is magnesium silicate manufactured by Mizusawa
Industrial Chemicals, Ltd. was used (average particle diameter: 150 to 200 µm).
[0060] As silicate G. "Sylopute 71R" which is silicon dioxide manufactured by Fuji Silysia
Chemical Ltd. was used (average particle diameter: 100 µm).
[0061] As silicate H, "Galleon Earth NVZ" which is activated clay manufactured by Mizusawa
Chemical Industry Co., Ltd. was used (average particle diameter: 39 µm).
[0062] As silicate I, "Radiolite #100" which is diatomaceous earth manufactured by Showa
Chemical Industry Co., Ltd. was used (average particle size: 20 µm).
[0063] As silicate J, "Food Additive Talc MS" which is talc manufactured by Nippon Talc
Co., Ltd. was used (average particle size: 14 µm).
[0064] As silicate K, one obtained by wet-pulverizing silicate C was used (the average particle
diameter after pulverization was 1.5 µm).
[0065] As silicate L, one obtained by wet-pulverizing silicate E under the same conditions
as in silicate K was used (the average particle diameter after pulverization was 1.2
µm).
[0066] As silicate M, one obtained by wet-pulverizing silicate F under the same conditions
as in silicate K was used (the average particle diameter after pulverization was 1.0
µm).
[0067] As silicate N, one obtained by wet-pulverizing silicate G under the same conditions
as in silicate K was used (the average particle diameter after pulverization was 1.0
µm).
[0068] As a palmitic acid, a product manufactured by Kishida Chemical Co., Ltd. was used.
[Table 2]
Type |
Fatty acid adsorption ratio [%] |
Silicate A |
0.5 |
Silicate B |
73.4 |
Silicate C |
51.1 |
Silicate D |
32.4 |
Silicate E |
25.5 |
Silicate F |
10.0 |
Silicate G |
8.7 |
Silicate H |
0.5 |
Silicate I |
0.5 |
Silicate J |
1.4 |
Silicate K |
51.5 |
Silicate L |
29.2 |
Silicate M |
13.7 |
Silicate N |
8.3 |
(Results)
[0069] When only a palmitic acid was formulated to purified palm oil, which is oil and fat
to be solidification-accelerated (Comparative Example 1-1), the solidification acceleration
of the purified palm oil was not confirmed (Comparative Example 1-2). When a silicate
and a palmitic acid were allowed to coexist in purified palm oil, solidification acceleration
was not confirmed (Comparative Examples 1-3 to 1-5). When silicate J, for which the
solidification accelerating effect is disclosed, and a palmitic acid were allowed
to coexist, the solidification acceleration of purified palm oil was observed, but
the effect was weak (Comparative Example 1-6).
[0070] On the other hand, when one of silicate B to silicate G and a palmitic acid were
allowed to coexist in purified palm oil, significant solidification acceleration of
the purified palm oil was confirmed (Examples 1-1 to 1-6). This effect exceeded the
solidification accelerating effect of silicate J. The tendency of the results obtained
by these solidification rates was similar in DSC evaluation.
[0071] When a wet-pulverized silicate and a palmitic acid were formulated, a significant
solidification accelerating effect was exhibited (Examples 1-8, 1-9, 1-11, and 1-12).
Even when only a wet-pulverized silicate was formulated in purified palm oil, solidification
acceleration was confirmed (Examples 1-7 and 1-10).
[0072] Regarding the fatty acid adsorption ratio of each silicate, the fatty acid adsorption
ratios of silicate A, silicate H, silicate I, and silicate J were all 2% or less.
On the other hand, the fatty acid adsorption ratios of silicate B to silicate G were
8% or more, and the fatty acid adsorption ratio of silicate B was the highest. These
silicates were subjected to a wet pulverization treatment to obtain silicate K to
silicate N, and the fatty acid adsorption ratios of the silicate K to silicate N were
also 8% or more.
(Consideration)
[0073] It was considered that the solidification accelerating effect obtained when a silicate
and a palmitic acid were allowed to coexist in oil and fat to be solidification-accelerated
is related to the fatty acid adsorption ratio of the silicate, and that a higher fatty
acid adsorption ratio of a silicate tends to accelerate the solidification of oil
and fat.
<Examination 2>
(Solidification Method)
[0074] The solidification method followed Examination 1 and was performed according to the
formulation in Table 3.
(Evaluation Method)
[0075] The evaluation method followed Examination 1.
[Table 3]
|
Comparative Example 2-1 |
Comparative Example 2-2 |
Comparative Example 2-3 |
Comparative Example 2-4 |
Comparative Example 2-5 |
Formulation [% by weight] |
Purified palm oil |
99 |
99 |
99 |
99 |
99 |
Silicate K |
- |
- |
- |
- |
- |
Fatty acid |
Lauric acid |
1 |
- |
- |
- |
- |
Stearic acid |
- |
1 |
- |
- |
- |
Oleic acid |
- |
- |
1 |
- |
- |
Arachidic acid |
- |
- |
- |
1 |
- |
Behenic acid |
- |
- |
- |
- |
1 |
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
Added |
1.000 |
1.000 |
1.000 |
1.000 |
1.000 |
Total |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
A/B ratio in oil and fat |
0.000 |
0.000 |
0.000 |
0.000 |
0.000 |
Solidification rate |
Solidification rate ratio |
0.9 |
0.9 |
1.0 |
0.9 |
1.0 |
Evaluation |
0 |
0 |
0 |
0 |
0 |
DSC |
Change in solidification point starting temperature [°C] |
0.2 |
0.4 |
0.2 |
0.7 |
0.9 |
Change in exothermic peak [°C] |
0.2 |
0.6 |
0.1 |
0.9 |
0.8 |
Evaluation |
0 |
0 |
0 |
0 |
0 |
|
Example 2-1 |
Example 2-2 |
Example 2-3 |
Example 2-4 |
Example 2-5 |
Formulation [% by weight] |
Purified palm oil |
98 |
98 |
98 |
98 |
98 |
Silicate K |
1 |
1 |
1 |
1 |
1 |
Fatty acid |
Lauric acid |
1 |
- |
- |
- |
- |
Stearic acid |
- |
1 |
- |
- |
- |
Oleic acid |
- |
- |
1 |
- |
- |
Arachidic acid |
- |
- |
- |
1 |
- |
Behenic acid |
- |
- |
- |
- |
1 |
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
Added |
1.000 |
1.000 |
1.000 |
1.000 |
1.000 |
Total |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
A/B ratio in oil and fat |
1.019 |
1.019 |
1.019 |
1.019 |
1.019 |
Solidification rate |
Solidification rate ratio |
3.6 |
5.0 |
3.9 |
5.0 |
4.9 |
Evaluation |
2 |
4 |
2 |
4 |
3 |
DSC |
Change in solidification point starting temperature [°C] |
3.6 |
6.7 |
3.6 |
5.6 |
4.1 |
Change in exothermic peak [°C] |
4.3 |
6.7 |
4.2 |
5.8 |
4.4 |
Evaluation |
2 |
3 |
2 |
3 |
2 |
[0076] As a lauric acid, stearic acid, oleic acid, arachidic acid, and behenic acid, products
manufactured by Kishida Chemical Co., Ltd. were used.
(Results)
[0077] When only a free fatty acid was formulated in purified palm oil, solidification acceleration
of the purified palm oil was not confirmed (Comparative Examples 2-1 to 2-5). On the
other hand, when a free fatty acid was allowed to coexist together with silicate K
having a high fatty acid adsorption ratio in purified palm oil, significant solidification
acceleration was observed (Examples 2-1 to 2-5).
<Examination 3>
(Solidification Method)
[0078] The solidification method followed Examination 1 and was performed according to the
formulation in Table 4. Purified palm oil from which a fatty acid was removed was
prepared as follows. Sylopute 71R (manufactured by Fuji Silysia Chemical Ltd.) was
added in an amount of 10% by weight to purified palm oil. The mixture was stirred
at 60°C for 60 minutes and thereafter filtered off under an environment at 60°C. This
filtrate was used as purified palm oil from which a fatty acid was removed, and the
fatty acid content was 0.000%.
(Evaluation Method)
[0079] The evaluation method followed Examination 1.
[Table 4]
|
Comparative Example 3-1 |
Comparative Example 3-2 |
Comparative Example 3-3 |
Comparative Example 3-4 |
Example 3-1 |
Example 3-2 |
Example 3-3 |
Example 3-4 |
Example 3-5 |
Formulation [% by weight] |
Purified palm oil |
100 |
- |
96 |
- |
99.9 |
99.8 |
98.9 |
95.9 |
99 |
Fatty acid-removed purified palm oil |
- |
100 |
- |
99.9 |
- |
- |
- |
- |
- |
Silicate K |
- |
- |
- |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.5 |
Palmitic acid |
- |
- |
4 |
- |
- |
0.1 |
1 |
4 |
0.5 |
Fatty acid content [% by weight] |
Palm oil-derived |
0.019 |
0.000 |
0.018 |
0.000 |
0.019 |
0.019 |
0.019 |
0.018 |
0.019 |
Added |
0.000 |
0.000 |
4.000 |
0.000 |
0.000 |
0.100 |
1.000 |
4.000 |
0.500 |
Total |
0.019 |
0.000 |
4.018 |
0.000 |
0.019 |
0.119 |
1.019 |
4.018 |
0.519 |
A/B ratio in oil and fat |
0.000 |
0.000 |
0.000 |
0.000 |
0.190 |
1.190 |
10.188 |
40.182 |
1.038 |
Solidification rate |
Solidification rate ratio |
1.0 |
1.0 |
0.5 |
1.3 |
1.8 |
3.1 |
3.5 |
3.4 |
5.4 |
Evaluation |
0 |
0 |
0 |
0 |
1 |
2 |
2 |
2 |
4 |
DSC |
Change in solidification point starting temperature [°C] |
0.0 |
-0.1 |
0.8 |
1.7 |
3.1 |
5.6 |
5.7 |
5.9 |
6.7 |
Change in exothermic peak [°C] |
0.0 |
-0.1 |
1.2 |
2 |
3.1 |
4.6 |
3.9 |
4.3 |
6.4 |
Evaluation |
0 |
0 |
0 |
1 |
2 |
2 |
2 |
2 |
3 |
|
Example 3-6 |
Example 3-7 |
Example 3-8 |
Example 3-9 |
Example 3-10 |
Example 3-11 |
Example 3-12 |
Example 3-13 |
Example 3-14 |
Formulation [% by weight] |
Purified palm oil |
98.995 |
98.99 |
98.975 |
98.95 |
98.925 |
98.9 |
98.7 |
98 |
97 |
Silicate K |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Palmitic acid |
0.005 |
0.010 |
0.025 |
0.05 |
0.075 |
0.1 |
0.3 |
1 |
2 |
Fatty acid content [% by weight] |
Palm oil-derived |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.018 |
Added |
0.005 |
0.010 |
0.025 |
0.050 |
0.075 |
0.100 |
0.300 |
1.000 |
2.000 |
Total |
0.024 |
0.029 |
0.044 |
0.069 |
0.094 |
0.119 |
0.319 |
1.019 |
2.018 |
A/B ratio in oil and fat |
0.024 |
0.029 |
0.044 |
0.069 |
0.094 |
0.119 |
0.319 |
1.019 |
2.018 |
Solidification rate |
Solidification rate ratio |
3.7 |
4.1 |
4.3 |
4.2 |
4.5 |
4.6 |
6.0 |
5.4 |
5.1 |
Evaluation |
2 |
3 |
3 |
3 |
3 |
3 |
4 |
4 |
4 |
DSC |
Change in solidification point starting temperature [°C] |
3.6 |
4.0 |
4.5 |
4.7 |
4.9 |
5.2 |
6.1 |
7.1 |
6.9 |
Change in exothermic peak [°C] |
2.7 |
3.3 |
3.9 |
4.2 |
4.4 |
4.8 |
6.0 |
7.0 |
7.2 |
Evaluation |
1 |
2 |
2 |
2 |
2 |
2 |
3 |
4 |
3 |
|
Example 3-15 |
Example 3-16 |
Example 3-17 |
Example 3-18 |
Example 3-19 |
Example 3-20 |
Example 3-21 |
Example 3-22 |
Example 3-23 |
Formulation [% by weight] |
Purified palm oil |
95 |
96 |
92 |
97.95 |
97.9 |
97.8 |
97.5 |
97 |
96 |
Silicate K |
1 |
4 |
4 |
2 |
2 |
2 |
2 |
2 |
2 |
Palmitic acid |
4 |
- |
4 |
0.05 |
0.1 |
0.2 |
0.5 |
1 |
2 |
Fatty acid content [% by weight] |
Palm oil-derived |
0.018 |
0.018 |
0.017 |
0.019 |
0.019 |
0.019 |
0.019 |
0.018 |
0.018 |
Added |
4.000 |
0.000 |
4.000 |
0.050 |
0.100 |
0.200 |
0.500 |
1.000 |
2.000 |
Total |
4.018 |
0.018 |
4.017 |
0.069 |
0.119 |
0.219 |
0.519 |
1.018 |
2.018 |
A/B ratio in oil and fat |
4.018 |
0.005 |
1.004 |
0.034 |
0.059 |
0.109 |
0.259 |
0.509 |
1.009 |
Solid ification rate |
Solidification rate ratio |
5.1 |
3.3 |
7.0 |
4.7 |
4.9 |
5.1 |
5.4 |
5.7 |
6.4 |
Evaluation |
4 |
2 |
4 |
3 |
3 |
4 |
4 |
4 |
4 |
DSC |
Change in solidification point starting temperature [°C] |
8.2 |
2.4 |
10.6 |
5.9 |
6.1 |
6.5 |
6.8 |
7.1 |
7.4 |
Change in exothermic peak [°C] |
7.8 |
3.9 |
8.7 |
5.3 |
5.8 |
6.2 |
6.7 |
7.0 |
7.2 |
Evaluation |
4 |
1 |
4 |
3 |
3 |
3 |
3 |
4 |
4 |
(Results)
[0080] As compared with purified palm oil in which silicate K and a palmitic acid were not
added (Comparative Example 3-1), the solidification acceleration of purified palm
oil from which a fatty acid was removed was not confirmed (Comparative Example 3-2).
Further, when only a palmitic acid was added to purified palm oil, solidification
acceleration was not observed either (Comparative Example 3-3).
[0081] Solidification acceleration of oil and fat was not confirmed when silicate K was
added to purified palm oil from which a fatty acid was removed (Comparative Example
3-4), whereas the solidification acceleration was confirmed when silicate K was added
to purified palm oil (Example 3-1).
[0082] When a predetermined amount of silicate K and palmitic acid, or silicate K, was added
to purified palm oil and allowed to coexist in the purified palm oil at a predetermined
ratio, significant solidification acceleration of the purified palm oil was confirmed
(Examples 3-2 to 3-23). In particular, when the formulation amount of silicate K was
1% by weight or more, fairly significant solidification acceleration was observed.
Also, when the total fatty acid content was 0.029% by weight or more, the solidification
accelerating effect was large.
<Examination 4>
(Solidification Method)
[0083] The solidification method followed Examination 1 and was performed according to the
formulation in Table 5. The free fatty acid content in oil and fat was calculated
in the same manner as in Examination 1, and the free fatty acid amount was calculated
as an oleic acid for all of cacao butter, purified cacao butter, and cacao mass extracted
oil.
(Evaluation Method)
[0084] In the measurment of the solidification rate in this study, the end point of SFC
was not obtained within the set time, and thus only DSC was evaluated, and those having
2 points or more in evaluation points were regarded as acceptable.
|
Comparative Example 4-1 |
Example 4-1 |
Comparative Example 4-2 |
Example 4-2 |
Comparative Example 4-3 |
Example 4-3 |
Type of oil and fat |
Cacao butter |
Purified cacao butter |
Cacao mass extracted oil |
Formulation [% by weight] |
Oil and fat |
100 |
98 |
100 |
98 |
100 |
99 |
Palmitic acid |
- |
1 |
- |
1 |
- |
- |
Silicate K |
- |
1 |
- |
1 |
- |
1 |
Fatty acid content [% by weight] |
Oil and fat-derived |
0.170 |
0.167 |
0.020 |
0.020 |
1.370 |
1.356 |
Added |
0.000 |
1.000 |
0.000 |
1.000 |
0.000 |
0.000 |
Total |
0.170 |
1.167 |
0.020 |
1.020 |
1.370 |
1.356 |
A/B ratio in oil and fat |
0.000 |
1.167 |
0.000 |
1.020 |
0.000 |
1.356 |
DSC evaluation |
Change in solidification starting temperature [°C] |
0.0 |
3.1 |
0.0 |
3.3 |
0.0 |
3.1 |
Change in exothermic peak temperature [°C] |
0.0 |
3.3 |
0.0 |
3.3 |
0.0 |
3.2 |
Evaluation |
0 |
2 |
0 |
2 |
0 |
2 |
[0085] As cacao butter, "Cocoa Butter 201" manufactured by Fuji Oil Co., Ltd. was used.
[0086] As purified cacao butter, one obtained by purifying "Cocoa Butter 201" manufactured
by Fuji Oil Co., Ltd. according to a conventional method was used.
[0087] As cacao mass extracted oil, a filtrate obtained by filtering "GB100" manufactured
by Fuji Oil Co., Ltd. through filter paper (No. 5C) was used.
(Results)
[0088] When silicate K and a palmitic acid were allowed to coexist in cacao butter which
contains a free fatty acid and purified cacao butter from which most of the free fatty
acid was removed by purifying the cacao butter, significant solidification acceleration
was observed (Examples 4-1 and 4 -2). It was revealed that when a silicate having
a fatty acid adsorption capability and a palmitic acid are allowed to coexist in oil
and fat to be solidification-accelerated, the solidification accelerating effect can
be obtained regardless of the presence or absence of a free fatty acid in oil and
fat.
[0089] When only silicate K was formulated to cacao mass extracted oil in cacao mass extracted
oil which originally contains a free fatty acid in oil and fat, significant solidification
acceleration of cacao mass was confirmed (Example 4-3). It can be said that this result
demonstrates that when a free fatty acid is present in oil and fat to be solidification-accelerated,
and a silicate having a fatty acid adsorption capability is formulated to the oil
and fat to be solidification-accelerated, solidification of the oil and fat can also
be accelerated.
<Examination 5>
(Solidification Method)
[0090] The solidification method followed Examination 1 and was performed according to the
formulation in Table 6. The fatty acid content in oil and fat was calculated in the
same manner as in Examination 1. The free fatty acid amount was calculated with CBE
as an oleic acid, palm middle melting point oil and transesterification reaction oil
as a palmitic acid, and coconut oil and laurin butter as a lauric acid.
(Evaluation Method)
[0091] The evaluation method followed Examination 3.
[Table 6]
|
Comparative Example 5-1 |
Example 5-1 |
Comparative Example 5-2 |
Example 5-2 |
Comparative Example 5-3 |
Example 5-3 |
Formulation [% by weight] |
CBE |
100 |
98 |
- |
- |
- |
- |
Palm middle melting point oil |
- |
- |
100 |
98 |
- |
- |
Coconut oil |
- |
- |
- |
- |
100 |
98 |
Silicate K |
- |
1 |
- |
1 |
- |
1 |
Palmitic acid |
- |
1 |
- |
1 |
- |
1 |
Fatty acid content [% by weight] |
Oil and fat-derived |
0.020 |
0.020 |
0.020 |
0.020 |
0.020 |
0.020 |
Added |
0.000 |
1.000 |
0.000 |
1.000 |
0.000 |
1.000 |
Total |
0.020 |
1.020 |
0.020 |
1.020 |
0.020 |
1.020 |
A/B ratio in oil and fat |
0.000 |
1.020 |
0.000 |
1.020 |
0.000 |
1.020 |
DSC evaluation |
Change in solidification starting temperature [°C] |
0.0 |
3.4 |
0.0 |
5.5 |
0.0 |
6.8 |
Change in exothermic peak temperature [°C] |
0.0 |
3.3 |
0.0 |
5.2 |
0.0 |
8.0 |
Evaluation |
0 |
2 |
0 |
3 |
0 |
3 |
|
Comparative Example 5-4 |
Example 5-4 |
Comparative Example 5-5 |
|
Example 5-5 |
|
Formulation [% by weight] |
Laurin butter |
100 |
98 |
- |
|
- |
|
Transesterification reaction oil |
- |
- |
100 |
|
98 |
|
Silicate K |
- |
1 |
- |
|
1 |
|
Palmitic acid |
- |
1 |
- |
|
1 |
|
Fatty acid content [% by weight] |
Oil and fat-derived |
0.020 |
0.020 |
0.020 |
|
0.020 |
|
Added |
0.000 |
1.000 |
0.000 |
|
1.000 |
|
Total |
0.020 |
1.020 |
0.020 |
|
1.020 |
|
A/B ratio in oil and fat |
0.000 |
1.020 |
0.000 |
|
1.020 |
|
DSC evaluation |
Change in solidification starting temperature [°C] |
0.0 |
7.5 |
0.0 |
|
4.7 |
|
Change in exothermic peak temperature [°C] |
0.0 |
10.4 |
0.0 |
|
3.6 |
|
Evaluation |
0 |
4 |
0 |
|
2 |
|
[0092] As cocoa butter equivalent (CBE), "Melano NEW.SS -7" manufactured by Fuji Oil Co.,
Ltd. was used.
[0093] As palm middle melting point oil, "Unishort MJ" manufactured by Fuji Oil Co., Ltd.
was used.
[0094] As coconut oil, "Refined Coconut Oil" manufactured by Fuji Oil Co., Ltd. was used.
[0095] As laurin butter, "Palkena H" manufactured by Fuji Oil Co., Ltd. was used.
[0096] As transesterification reaction oil, "Melano NT-R" manufactured by Fuji Oil Co.,
Ltd. was used.
(Results)
[0097] As compared with the case where silicate K and a palmitic acid did not coexist in
oil and fat (Comparative Examples 5-1 to 5-5), solidification acceleration of oil
and fat was confirmed when silicate K and a palmitic acid coexisted in oil and fat
(Examples 5-1 to 5-5). It was revealed that the solidification accelerating effect
attributable to coexistence of a silicate having a fatty acid adsorption capability
and a fatty acid in oil and fat to be solidification-accelerated can be used for various
types of oil and fat.
<Examination 6>
(Preparation of Solidification Accelerator)
[0098] Solidification accelerators of Examination Sample 1 to Examination Sample 5 were
prepared. The concentrations of silicate K and a palmitic acid in each study sample
are shown in Table 7.
(Examination Sample 1)
[0099] The same oil and fat as oil and fat to be solidification-accelerated was separately
prepared. Two parts by weight of silicate C was added to 98 parts by weight of purified
palm oil completely melted at 80°C or higher and, after complete melting at 80°C or
higher, pulverized under an environment at 80°C according to "- Wet pulverization
method for silicate" in Examination 1. The pulverized solution was centrifuged (at
3000 x g for 30 minutes), and 80 parts by weight of the supernatant was removed with
a dropper. Twenty parts by weight of the residue which contains the precipitate was
used as a solidification accelerator of Examination Sample 1.
(Examination Sample 2)
[0100] The same oil and fat as oil and fat to be solidification-accelerated was separately
prepared. Two parts by weight of silicate C was added to 98 parts by weight of purified
palm oil completely melted at 80°C or higher and, after complete melting at 80°C or
higher, pulverized under an environment at 80°C according to "- Wet pulverization
method for silicate" in Examination 1. The pulverized solution was centrifuged (at
3000 x g for 30 minutes), and 90 parts by weight of the supernatant was removed with
a dropper. Ten parts by weight of the residue which contains the precipitate was used
as a solidification accelerator of Examination Sample 2.
(Examination Sample 3)
[0101] The same oil and fat as oil and fat to be solidification-accelerated was separately
prepared. Two parts by weight of silicate C was added to 98 parts by weight of purified
palm oil completely melted at 80°C or higher and, after complete melting at 80°C or
higher, pulverized under an environment at 80°C according to "- Wet pulverization
method for silicate" in Examination 1. The pulverized solution was centrifuged (at
3000 xg for 30 minutes), and 82 parts by weight of the supernatant was removed with
a dropper. Eighteen parts by weight of the residue which contains the precipitate
was added with 2 parts by weight of a palmitic acid to make a total of 20 parts by
weight. The palmitic acid was dissolved at 80°C or higher. The solution was mixed
by a vortex mixer and used as a solidification accelerator of Examination Sample 3.
(Examination Sample 4)
[0102] The same oil and fat as oil and fat to be solidification-accelerated was separately
prepared. Two parts by weight of silicate C was added to 98 parts by weight of purified
palm oil completely melted at 80°C or higher and, after complete melting at 80°C or
higher, pulverized under an environment at 80°C according to "- Wet pulverization
method for silicate" in Examination 1. The pulverized solution was centrifuged (at
3000 xg for 30 minutes), and 92 parts by weight of the supernatant was removed with
a dropper. Eight parts by weight of the residue which contains the precipitate was
added with 2 parts by weight of a palmitic acid to make a total of 10 parts by weight.
The palmitic acid was dissolved at 80°C or higher. The solution was mixed by a vortex
mixer and used as a solidification accelerator of Examination Sample 4.
(Examination Sample 5)
[0103] Two parts by weight of silicate C was added to 98 parts by weight of a palmitic acid
completely melted at 80°C or higher and pulverized under an environment at 80°C according
to "- Wet pulverization method of silicate" in Examination 1. The pulverized solution
was centrifuged (at 3000 x g for 30 minutes), and 80 parts by weight of the supernatant
was removed with a dropper. Twenty parts by weight of the residue which contains the
precipitate was used as a solidification accelerator of Examination Sample 5.
(Examination Samples 6 to 8)
[0104] A solidification accelerator having the same concentration as that of Examination
Sample 4 was prepared using coconut oil, cacao mass extracted oil, and transesterification
reaction oil.
[Table 7]
|
Examinatio n Sample 1 |
Examinatio n Sample 2 |
Examinatio n Sample 3 |
Examinatio n Sample 4 |
Examinatio n Sample 5 |
Examinatio n Sample 6 |
Examinatio n Sample 7 |
Examinatio n Sample 8 |
Formulation [% by weight] |
Silicate K |
10 |
20 |
10 |
20 |
10 |
20 |
20 |
20 |
Palmitic acid |
- |
- |
10 |
20 |
90 |
20 |
20 |
20 |
Purified palm oil |
90 |
80 |
80 |
60 |
- |
- |
- |
- |
Coconut oil |
- |
- |
- |
- |
- |
60 |
- |
- |
Cacao mass extracted oil |
- |
- |
- |
- |
- |
- |
60 |
- |
Transesterification reaction oil |
- |
- |
- |
- |
- |
- |
- |
60 |
A/B ratio of solidification accelerator |
0.002 |
0.001 |
1.122 |
1.001 |
9.000 |
1.001 |
1.001 |
1.001 |
(Solidification Method)
[0105] According to the formulation in Table 8, oil and fat completely melted at 80°C or
higher and a solidification accelerator were mixed and completely melted at 80°C or
higher. The product was sufficiently mixed by a vortex mixer until the aggregate could
not be visually confirmed. The obtained mixed liquid was immediately subjected to
measurement of a solidification rate (SFC) and DSC measurement.
(Evaluation Method)
[0106] The evaluation method followed Examination 1. In the study on the formulation of
the solidification accelerator into various types of oil and fat, the end point of
SFC was not obtained within the set time in the measurement of the solidification
rate, and thus only DSC was evaluated, and those having 2 points or more in evaluation
points were regarded as acceptable.
[Table 8]
|
Comparative Example 6-1 |
Example 6-1 |
Example 6-2 |
Example 6-3 |
Example 6-4 |
Example 6-5 |
|
Formulation [% by weight] |
Purified palm oil |
100 |
99 |
95 |
99.5 |
99 |
95 |
|
Solidification accelerator |
Examination Sample 1 |
- |
1 |
5 |
- |
- |
- |
|
Examination Sample 2 |
- |
- |
- |
0.5 |
1 |
5 |
|
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.019 |
0.018 |
0.019 |
0.019 |
0.018 |
|
Added |
0.000 |
0.000 |
0.001 |
0.000 |
0.000 |
0.001 |
|
Total |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
0.019 |
|
A/B ratio in oil and fat |
0.000 |
0.190 |
0.038 |
0.190 |
0.095 |
0.019 |
|
Solidification rate |
Solidification rate ratio |
1.0 |
1.8 |
3.2 |
1.8 |
1.8 |
3.6 |
|
SFC evaluation |
1 |
1 |
2 |
1 |
1 |
2 |
|
DSC |
Change in solidification starting temperature [°C] |
0.0 |
3.2 |
3.1 |
3.0 |
3.4 |
3.4 |
|
Change in exothermic peak temperature [°C] |
0.0 |
3.1 |
2.9 |
3.0 |
3.1 |
2.9 |
|
DSC evaluation |
0 |
2 |
1 |
2 |
2 |
1 |
|
|
Example 6-6 |
Example 6-7 |
Example 6-8 |
Example 6-9 |
Example 6-10 |
Example 6-11 |
Example 6-12 |
Formulation [% by weight] |
Purified palm oil |
99 |
95 |
99.5 |
99 |
95 |
99 |
95 |
Solid ification accelerator |
Examination Sample 3 |
1 |
5 |
- |
- |
- |
- |
- |
Examination Sample 4 |
- |
- |
0.5 |
1 |
5 |
- |
- |
Examination Sample 5 |
- |
- |
- |
- |
- |
1 |
5 |
Fatty acid content [% by weight] |
Purified palm oil-derived |
0.019 |
0.018 |
0.019 |
0.019 |
0.018 |
0.019 |
0.018 |
Added |
0.100 |
0.501 |
0.100 |
0.200 |
1.001 |
0.900 |
4.500 |
Total |
0.119 |
0.519 |
0.119 |
0.219 |
1.019 |
0.919 |
4.518 |
A/B ratio in oil and fat |
1.190 |
1.038 |
1.190 |
1.095 |
1.019 |
9.188 |
9.036 |
Solidification rate |
Solidification rate ratio |
3.1 |
5.3 |
3.0 |
3.4 |
5.3 |
3.5 |
6.2 |
SFC evaluation |
2 |
4 |
2 |
2 |
4 |
2 |
4 |
DSC |
Change in solidification starting temperature [°C] |
5.5 |
6.5 |
5.1 |
5.9 |
6.9 |
5.6 |
6.8 |
Change in exothermic peak temperature [°C] |
4.5 |
6.5 |
3.8 |
4.7 |
6.7 |
3.6 |
6.6 |
DSC evaluation |
2 |
3 |
2 |
2 |
3 |
2 |
3 |
|
Comparative Example 6-2 |
Example 6-13 |
Comparative Example 6-3 |
Example 6-14 |
Comparative Example 6-4 |
Example 6-15 |
|
Formulation [% by weight] |
Oil and fat |
Coconut oil |
100 |
95 |
- |
- |
- |
- |
|
Cacao mass extracted oil |
- |
- |
100 |
95 |
- |
- |
|
Transesterification reaction oil |
- |
- |
- |
- |
100 |
95 |
|
Solidification accelerator |
Examination Sample 6 |
- |
5 |
- |
- |
- |
- |
|
Examination Sample 7 |
- |
- |
- |
5 |
- |
- |
|
Examination Sample 8 |
- |
- |
- |
- |
- |
5 |
|
Fatty acid content [% by weight] |
Oil and fat-derived |
0.019 |
0.018 |
0.019 |
0.018 |
0.019 |
0.018 |
|
Added |
0.000 |
1.001 |
0.000 |
1.001 |
0.000 |
1.001 |
|
Total |
0.019 |
1.019 |
0.019 |
1.019 |
0.019 |
1.019 |
|
A/B ratio in oil and fat |
0.000 |
1.019 |
0.000 |
1.019 |
0.000 |
1.019 |
|
Evaluation (DSC) |
Change in solidification starting temperature [°C] |
0.0 |
6.8 |
0.0 |
3.7 |
0.0 |
4.9 |
|
Change in exothermic peak temperature [°C] |
0.0 |
8.1 |
0.0 |
3.3 |
0.0 |
3.7 |
|
Evaluation |
0 |
3 |
0 |
2 |
0 |
2 |
|
(Results)
[0107] As compared with the case where no solidification accelerator was formulated (Comparative
Example 6-1), solidification acceleration of purified palm oil was confirmed when
Examination Sample 1 or 2, which is a solidification accelerator that contains silicate
K, was formulated in purified palm oil (Examples 6-1 to 6-5). Also, when Sample 3
or 4, which is a solidification accelerator that contains silicate K and a palmitic
acid, was formulated in purified palm oil, the solidification acceleration of the
purified palm oil was confirmed (Examples 6-6 to 6-10). Further, when a solidification
accelerator that contains only silicate K and a palmitic acid, as in Examination Sample
5, was formulated in purified palm oil, solidification acceleration was confirmed
(Examples 6-11 and 6-12).
[0108] When Samples 6 to 8, which are solidification accelerators that contain silicate
K and a palmitic acid, were formulated in various types of oil and fat, the solidification
acceleration of the oil and fat was confirmed (Examples 6-13 to 6-15), as compared
with the cases of no formulation (Comparative Examples 6-2 to 6-4).
[0109] The solidification accelerator as described in the present invention, which contains
a silicate having a fatty acid adsorption capability and a fatty acid, only has to
be added to oil and fat to be solidification-accelerated in order to accelerate the
solidification of the oil and fat. The solidification accelerating effect during use
of the solidification accelerator has an effect similar to that obtained when a silicate
and a fatty acid are allowed to coexist directly in oil and fat to be solidification-accelerated,
and a solidification accelerator for oil and fat capable of simply accelerating solidification
can be provided.